Single-sleeve-valve engine



March 4, 1930. E. L. GILBERT SIGNAL SLEEVE VALVE ENGINE a n, 3 3 a E E E E E 1 :L IIILLII:

fmulvlllunllu l Illlllllll: N

.HIIHINHNIUn HHHIIIIIII- Ulv .\.M if \:I f

ATTORNEY March 4, 1930. E. L. GILBERT 1,749,701

SIGNAL SLEEVE VALVE ENGINE Filed April 13,. 1928 4 Sheets-Sheet 2' ATTORNEY March 4, 1930. E. L. GILBERT SIGNAL SLEEVE VALVE ENGINE Filed April 13, 1928 4 Sheets-Sheet ATTOR NEY March 4, 1930. E. L. GILBERT 1,749,701

SIGNAL SLEEVE VALVE ENGINE Filed April l5. 1928 4 sheets-sneer 4 Maf ATTORNEY Patented Mar. 4, 1930 UNITED. STATES EDWARD LESLIE GILBERT, OF 'FORT BAYARD, 'NEW MEXICO SINGLE-SLEEVE-'VALVE' ENGINE Application led April 18,

This invention relates to an internal combustion engine, the general object of the invention belng to providethe cylinders with sleeve valves, each having a pair of substantially triangular-shaped inlet ports and a pair of similar shapedoutlet ports therein, with means for giving each sleeve a vertical and oscillatory movement so that the explosive mixture will be admitted to the cylinders in large quantities and the exhaust gases can freely escape from the cylinders, thereby increasing the eicienc o the engine.

Another Object o the invention is to so form the operating'parts of th'e sleeve valves that they have great strength and long life and they will operate with the minimum amount of noise.

This invention also consists in certain l other features of construction and inthe combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and inwhich i Figure 1 is an elevation of the improved engine, showing the arrangement of ports in dotted lines.

Figure 2 is a section on line 2--2 of Figure 1.

Figure 3 is a section on line 3-3 of Figure 2.

Figure 4 is a sectionon line 4-4 of Figure 1.

Figure 5 is a view of one of the sleeve valves, with parts broken away to show the ports on the opposite side thereof.

Figure 6 is a section on line 6-6 of Figure 5.

'Figure 7`is a section on line 7.--7 of Figure 5.

In these views, the numeral 41 indicates the 'i l' cylinder blockawhich is formed with the cylinders 2, the head of the block being indicated at 3 and this head is rovided with the depending portions 4 whic extend into the 192s. serial no. 2691775.

cylinders 2 and are bored, as at 5, t0 receive a lsparkplug 6. As shown, each depending part 4 1s spacedfrom the upper end of each cylinder to forman annular space which receives the upper end of the sleeve valve 7.

vThe crank case is shown at 8 and the crank shaft at 9, this vcrank shaft being connected in the usual manner with the pistons 10 by the connecting rods 11, the pistons reciprocating in the sleevevalves. Each valve i's ,of cylindrical shape with both ends open and the lower end of each sleeve is formed with an annular' oove 12 to receive a collar 13 which i's rotata ly mounted in the groove.

A shaft 14 is journaled in the crank case at one side thereof and a shaft 15 is journaled in the other side of the crank case. Theseshafts are driven from the crank shaft by the sprockets and chains, shown generally at 16. The shaft 11 carries a number of eccentrics 17, one for each cylinder, and the eccentric strap 18' of each eccentric is connected by a rod 19 with the collar 13 of each sleeve. Each connecting rod 19 is held against side movement by a bracket 20vattached to the top of the crank case and depending therefrom and having its forked end 21, which extends 'at right angles from the bracket, receiving the rod between the prongs thereof.

A plurality of arts of eccentrics 22 are carried by the sha 15, a pair for each sleeve, the eccentric straps 23 of each pair of eccentrics are connected by the rods 24 with the lower part of each sleeve through means ofthe ball and socket connection shown generally at 25. As shown, one connecting rod of each pair is connected to one side of the sleeve and the other rod of each pair is connected to the opposite side of each sleeve. The eccentrics of each air are oppositely arranged, as shown in igure 3, so Vthat as one rod is moving outwardly, the other rod is moving inwardly so that both rods tend to oscillate the sleeve as the shaft 15 is 95 rotated.

The upper art4 of each sleeve is formed with a pairvo inlet ports 26 4on one side of the sleeve and with a pair of outlet ports 27 at the opposite side of the sleeve, the ports 27 located in a lower plane than the having depending portions .journaled in the crank case,

" on each sleeve, of rods being connected with eccentrics4 on the second shaft, a depending ports 26, with each side of the vertical planeof each port 26, as shown in Fi ure 5. All-'the ports are of substantially triangular shape in cross section. Each cylinder is formed with a pair of inlet ports 28 and a pair'of outlet-ports 29. These ports are also f substantially triangular sha e. y

Gilides'() are also provided for the connecting rods 24: for preventing side movement of these rods. l

From the foregoing it will be seen that the sleeve valves are given a reciprocatory move- -port 27 arranged to one with the collar for preventing side movement of said rod and a second forked mem' ber depending from a part of the c rank case for engaging each rod connected with a p rojection on lthe sleeve for preventing side movement of said rod.

In testimony whereof I aiix my. si nature. A

ment by the shaft 14, the eccentric 17 and Y the connecting 'rods 19 and at the saine time are given an oscillatory movement by means of the shaft l5, the eccentrics 22 and the connecting rods 24, the sleeve turning in the collar 13.

Thus the ports 26 and 27 are each moved in a substantially elliptical path so that each set of ports will come into register with the inlet or exhaust ports of each cylinder' as the ports move over this path. Due to the shape of the ports, a large amount of combustible mixture will enter each cylinder and the exhaust gases can freely escape from the cy1in. ders during the exhaust strokes of the istons.

It `is thought from the foregoing escription that the advantages and novel features of my invention will be readily apparent.

It is to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claim.

What I claim is A An internal combustion motor comprising a cylinder block, a head fitting thereon and extending into the cylinders and spaced from the internal walls of the cylinders, a sleeve valve arranged in each cylinder with its upper end entering the space formed between the depending part ofthe head and the upper end of the cylinder,

a crank case connected with the block, a crank shaft in the case, a piston slidably arranged in each sleevel valve, a rod connecting each piston with the crank shaft, a pair of shafts means Yfor con- Y nectingth'e shafts with the crank shaft, eccentries on the shafts, rods connected with the eccentrics "on one shaft, collars rotatably arranged on the sleeve valves and pivoted t0 said rods,

projections on` the lower end of each sleeve at opposite sides thereof, each projection having a rounded head, a pair of connecting rods having sockets at their inner ends receiving the heads of the projections the outer ends of each pair member in the crank case having a forked a pair of the e fii'o' 

